Did you know that you can “right-click” an item without ever lifting your fingers off the keyboard? With that item (folder, file, whatever) selected, hold down the Shift key and press F10. Use your keyboard’s up and down arrow keys to select the command you want, then press Enter.

Want to send an open window to the Taskbar without using the mouse? Press Alt-Spacebar to display the context menu of the currently active window, then press N for Minimize. So, for the quick version, press Alt-Spacebar-N.
You can use a similar technique to close an open window. Press Alt-Spacebar, then press C for [...]

When you use cut and paste in a Word document, Word takes care of adding the correct spacing–that is, if you have the Smart Cut And Paste option selected.
Run Word and choose Tools, Options. When the Options dialog box opens, click the Edit tab. Now, select the Use Smart Cut And Paste check [...]

To highlight a word, double-click it; to highlight a line, click once to its left (in the left margin); and to highlight a paragraph, double-click to its left (again, in the margin). Now let’s look at some bigger selections.
To highlight a large area of text, click once at the beginning of the text, [...]

Do you want to get to the desktop in a flash? Hold down the Windows Key ( next to the Ctrl and Alt key on most keyboards) and press M. This immediately minimizes all windows you have open and brings you to the desktop.

ALT+ENTER View properties for the selected item.
ALT+ESC Cycle through items in the order they were opened.
ALT+F4 Close the active item, or quit the active program.